TY - JOUR
T1 - Dynamic response of high-speed train-track-bridge coupled system under combined wind and snow
AU - Gou, Hongye
AU - Yan, Huan
AU - Zhao, Tianqi
AU - Ban, Xinlin
AU - Meng, Xin
AU - Bao, Yi
N1 - Publisher Copyright:
© 2023 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2023
Y1 - 2023
N2 - The dynamic response of high-speed trains under meteorological hazards concerns operation safety and serviceability. This paper investigates the dynamic response of high-speed train-track-bridge coupled system subject to combined wind and snow. A numerical model integrating a computational fluid dynamics model and a multi-body dynamics model was established to predict the dynamic response of the couple system. The computational fluid dynamics model was used to analyze the aerodynamic loads applied to the coupled systems. The multi-body dynamics model was used to analyze the dynamic response of the coupled system under the aerodynamic loads. The effects of train speed, wind speed, and snow depth on the dynamic response were evaluated. A law was formulated to specify the speed limits for safe operation of high-speed trains. The results showed that combining wind and snow aggravated the dynamic response of high-speed trains via altering the aerodynamic loads applied to the coupled system. This research will promote practical operation and management of high-speed trains.
AB - The dynamic response of high-speed trains under meteorological hazards concerns operation safety and serviceability. This paper investigates the dynamic response of high-speed train-track-bridge coupled system subject to combined wind and snow. A numerical model integrating a computational fluid dynamics model and a multi-body dynamics model was established to predict the dynamic response of the couple system. The computational fluid dynamics model was used to analyze the aerodynamic loads applied to the coupled systems. The multi-body dynamics model was used to analyze the dynamic response of the coupled system under the aerodynamic loads. The effects of train speed, wind speed, and snow depth on the dynamic response were evaluated. A law was formulated to specify the speed limits for safe operation of high-speed trains. The results showed that combining wind and snow aggravated the dynamic response of high-speed trains via altering the aerodynamic loads applied to the coupled system. This research will promote practical operation and management of high-speed trains.
KW - Dynamic analysis
KW - hazards
KW - railroad bridges
KW - railroad engineering
KW - wind loading & aerodynamics
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U2 - 10.1080/15732479.2023.2230576
DO - 10.1080/15732479.2023.2230576
M3 - Article
AN - SCOPUS:85163812802
SN - 1573-2479
JO - Structure and Infrastructure Engineering
JF - Structure and Infrastructure Engineering
ER -